Machine for coating can-covers.



Patented June 26, I900. A. KBESS.

MACHINE FOR COATING CAN COVERS.

(Application fil 1698.)

ed July 18,

2 Sheets $heei I.

(No Model.)

A HU

I lmlllllllflillfl 'No. 652,7l8.

(No Model.)

A. KBESS.

Patented June 26, I900.

MACHINE FOB GOAT |NG CAN COVERS.

(Application filed July 18, 1899.)

2 Sheets-Sheet 2.

wwmsaws.

UNITED STATES PATENT CJFFICE.

AUGUST KRESS, OF BAYONNE, NEW JERSEY, ASSIGNOR OF ONE-HALF TO GEORGECARRAGAN, OF SAME PLACE.

MACHINE FOR COATING CAN-COVERS.

SPECIFICATION forming part of Letters Patent No. 652,718, dated June 26,1900.

Application filed July 18, 1899. Serial No. 724,219. (No model.) V

To all whom it may concern:

Be it known that I, AUGUST KRESS, a citizen of the United States, and aresident of Bayonne, in the county of Hudson and State of New Jersey,have invented certain new and useful Improvements in. Machines forCoating Can-Covers, of which the following is a which will be compact,simple, and economical in construction and not liable to derangement inuse, and in which greater speed in coating the covers may be attainedthanheretofore.

To these ends, therefore, my said invention consists in the novelfeatures, all as hereinafter more particularly described,and pointed outin the claims.

Referring to the accompanying drawings, in the several figures of whichlike parts are similarly designated, Figure l is a front elevation of mysaid machine. Fig. 2 is a central vertical section thereof, partlyinelevation. similar view showing the machine in the act of coating acan-cover. Fig. 5 is an enlarged vertical sectional view of the lowerpart of the reservoir for holding the coating compound and of the valvethrough'which the same is applied. Fig. 6 is a fragmentary sectionalview of a can-cover, showing the'coating applied to the inner half ofits flange and Fig. 7 is a similar View of a can and cover united by anordinary lap-joint.

a is a base from which rise the bifurcated standards I? and 0, providedwith the journals or bearings b and c. Mounted in the bearings bis therotatory horizontal shaft d, to which is keyed the belt-wheel e andwhich carries at its projecting inner end the disk or mandrelf, onwhich'th'e can-cover to be coated is placed and rotated. Extendingthrough the bearings c and in line with shaft d is the horizontalreciprocating shaft g, operated by Fig. 3 is a top plan view. Fig. 4 isa the spring or grip levers h h, one of which, h, is rigidly secured tostandard 0 and the other of which, it, is fulcrumed at 2' to lever h andpivoted at vi to a lug j, projecting from the shaft 'g. A leaf-spring7.: serves to keep the levers normally apart, as in Fig. 3.

Secured in the swivel Z, which has its seat in the top of the innerbearing 0, is the rod m, adjustable by means of the set-screw m andcarrying at its forward end the ringclamp n, controlled by the set-screwn, engaging the two offset portions n of said ring in the usual manner.A levero is pivoted in lugs 0 to the rod m in front of the swivel Z andis adj ustably secured by the set-screw 19' in the swivel 19, having itsseat in the lug q secured, as by the collar q, to the shaft 9, near theend thereof.

The receptacle for holding and applying the coating solution and whichis adjustably confined in the ring-clamp it comprises the cup orreservoir 1', the bottomof which is divided by the transverseverticalwall r into an up per portion .9 and a smaller'lower portion 3,from which latter projects the spout or nozzle t. Said nozzle isnormally closed by the piston-valve 75', extending rearwardly throughthe dividing-wall r and mounted on the rod u, the front end ofwhichprojects beyond the end of nozzle 15 and the rear end of which passesthrough an appropriate aperture in the rear wall of reservoir 1". Acoil-spring u between the rear of the piston t and the rear wall of thereservoir 1" serves to keep the valve normally closed, as in Fig. 5.

The operation of my invention is as follows: A can-cover c, Fig. 4, isplaced with its outer face against the face of the disk or mandrel f,and the rod on, the lever 0, and the reservoir a" are adjusted by theset-screws m, 19, and n, so'that the spout or nozzlet of the res ervoirstrikes that portion of the cover which it is desired to coat when thegrip-levers h h are brought together, as in Fig. 4. The shaft 01 andmandrel f are then rotated by a belt passing over the pulley e andcommunicating with a suitable source of power, and the coating compoundor solution is placed in the reservoir r. A cover 4) being in positionon the mandrel f, the grip-levers h h are brought to gether, forwardingthe reciprocating shaft 9 until its end abuts against the cover, therebyholding the same in place during the coating operation, as shown in Fig.4:. By the movement of shaft 9 the lever 0 partially rotates the cup orreservoir 1' through the described connections, and as the projectingend of valve-rod it comes in contact with the cover it is forcedinwardly, carrying with it the piston t, uncovering the inner opening ofthe spout or nozzle 25, and permitting the coating compound or solutionto flow through said nozzle and onto the cover, forming an annularcoating to thereon at the point of contact. As soon as the grip onlevers h h is released they are forced into open position by the spring7t retracting the shaft 9 and connected parts, as in Fig. 3, and thecoated cover is removed from the mandrel fand an uncoated coversubstituted. Covers of various sizes may be coated by substituting alarger or smaller mandrel f and by adjusting the reservoir 7', the rodm, and lever 0 so that the nozzlet may impinge upon the cover at thedesired point.

By the use of my machine a coating w, Fig. 6, may be applied to anydesired portion of the cover 7) to the exclusion of other portions. Ihave here shown the same applied at the preferred point-viz, on theinner half of the cover-flange 12'. Coatings, adhesive or otherwise, andwashers have heretofore been applied to the entire flange, and when thecover is applied to the can :1: and bent to form a lap-joint, as in Fig.7, such coating or washer is apt to buckle or to be torn, stretched, ordisarranged, forming channels or apertures through which air may enterthe can, thus destroying the efficacy of the closure. By the use of myinvention, however, the coating may be applied to some desired portionof the cover,between the bends therein, leaving only the uncoatedportions to be bent and leaving the coating intact and u nsubjccted tothe tearing tendency of the jointing-machine. Obviously, if desired, theentire flange may be coated by my machine by making the opening of thespout or nozzle t broader, or two or more concentric coatings may beapplied, and many other changes, alterations, and modifications may bemade without departing from the scope and purview of my invention.

What I claim as my invention, and desire to secure by Letters Patent,is-- 1. The combination with means for holding and rotating a can-cover,of a reservoir adapted to be moved toward and from said cover, andprovided with mechanism whereby the contents of said reservoir may betransferred to a portion of said cover, substantially as described.

2. The combination with means for holding and rotating a can-cover, of areservoir adapted to be automatically moved toward and from said cover,and provided with an automatically-controlled outlet whereby thecontents of said reservoir may be transferred to a portion of saidcover, substantially as described.

3. A rotatory mandrel; a reciprocating shaft, and a movable reservoir;means for moving said shaft, and means for moving said reservoir towardand from said mandrel, substantially as described.

a. A rotatory mandrel; a reciprocating shaft, and an adjustablereservoir connected to said shaft, and means for moving said shaft andreservoir toward and from said mandrel, substantially as described.

5. A rotatory mandrel; a reciprocating shaft; a swiveled rod carrying areservoir; a lever pivotally connected to said rod and to said shaft,and means for moving said shaft and reservoir toward and from saidmandrel, substantially as described.

- 6. A rotatory mandrel; a reciprocating shaft; an adjustable swiveledrod carrying a clamp; a reservoir adjustablyconfined in said clamp; anadjustablelevel-pivotally connected to said rod and to said shaft, andmeans for moving said shaft and reservoir toward. and from said mandrel,substantially as described.

7. A rotatory mandrel; a reciprocating shaft; a reservoir connected tosaid shaft and having a projecting spout or nozzle and aspring-controlled piston-valve normally closing said nozzle and adaptedto open the same upon contact with a cover; in combination with meansfor moving said shaftand the nozzle of said reservoir into and out ofcontact with a cover, substantially as described.

8. A rotatory mandrel; a reciprocating shaft; a reservoir connected tosaid shaftand having a bottom divided bya transverse wall into an upperand a lower portion; an opening from the latter to a projecting spout ornozzle, said opening being normally closed by a piston having a bearingin said wall and mounted on a spring-controlled red, the forward end ofwhich projects through and beyond said nozzle; in combination with meansfor moving said reciprocating shaft and nozzle into and out of contactwith a cover, substantially as described.

9. In machines for coating can-covers, a rotatory mandrel, adapted toreceive and rotate a cover; a reciprocating shaft, adapted to hold saidcover on said mandrel; a swiveled rod carrying a reservoir provided witha valve-controlled outlet; a lever pivoted to said rod and swiveled tosaid shaft; and spring or grip levers, one of which is pivoted to saidreciprocating shaft, whereby the latter and the reservoir are movedtoward and from the said mandrel, substantially as described.

Signed at New York, in the county of New York and State of New York,this 15th day of July, A. D. 1899.

AUGUST KRESS.

lVitnesses:

FREDERIO CARRAGAN, J. B. TANNER.

